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A U.S. poisonous snake of the genus Agkistrodon.
1. a venomous snake (a pit viper), Agkistrodon contortrix, of the United States, having a brown to copper-colored body with dark bands.
2. a very venomous elapid snake, Denisonia superba, of Australia, Tasmania, and the Solomon Islands.
1. A venomous snake (Agkistrodon contortrix) of the eastern and central United States and northern Mexico, having a tan body with reddish-brown crossbands.
2. Copperhead A Northerner who sympathized with the South during the Civil War.
Etymology: L, cuprum + ME, hed
a poisonous pit viper (Agkistrodon contortrix) found mainly in the southeastern United States. The reddish brown, darkly banded snake is responsible for nearly 40% of the snakebites in the United States. Few bites are fatal. Pain, swelling, fang marks, and a bruise are usually present. Immediate treatment includes keeping the victim quiet and immobilizing the bite area at the level of the heart while seeking medical attention. Antivenin is available but is rarely indicated. See also coral snake, cottonmouth, rattlesnake.